Cirrus-logic CS4382A Manuel d'utilisateur Page 9
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DS618F2 9
CS4382A
DAC ANALOG CHARACTERISTICS - COMMERCIAL (-CQZ)
Test Conditions (unless otherwise specified): VA = VLS = VLC = 5 V; VD = 2.5 V; T
A
= 25°C; Full-Scale 997 Hz
input sine wave
(Note 1); Tested under max ac-load resistance; Valid with FILT+ and VQ capacitors as shown in
“Typical Connection Diagram” on page 19; Measurement Bandwidth 10 Hz to 20 kHz.
Notes:
1. One-half LSB of triangular PDF dither is added to data.
2. Performance limited by 16-bit quantization noise.
3. V
FS
is tested under load R
L
and includes attenuation due to Z
OUT
Parameters Symbol Min Typ Max Unit
FS = 48 kHz, 96 kHz, 192 kHz and DSD
Dynamic Range 24-bit A-weighted
Unweighted
16-bit A-weighted
(Note 2) Unweighted
108
105
-
-
114
111
97
94
-
-
-
-
dB
dB
dB
dB
Total Harmonic Distortion + Noise 24-bit
0 dB
-20 dB
-60 dB
(Note 2) 16-bit 0 dB
-20 dB
-60 dB
THD+N
-
-
-
-
-
-
-100
-91
-51
-94
-74
-34
-94
-
-45
-
-
-
dB
dB
dB
dB
dB
dB
Idle Channel Noise / Signal-to-noise Ratio - 114 - dB
Interchannel Isolation (1 kHz) - 110 - dB
DC Accuracy
Interchannel Gain Mismatch - 0.1 - dB
Gain Drift - 100 - ppm/°C
Analog Output
Full-scale Differential Output Voltage V
FS
128%•V
A
132%•V
A
136%•V
A
Vpp
Output Impedance (Note 3) Z
OUT
-130-Ω
Max DC Current Draw From an AOUT Pin I
OUTmax
-1.0-mA
Min AC-load Resistance R
L
-3-kΩ
Max Load Capacitance C
L
-100-pF
Quiescent Voltage V
Q
- 50%•V
A
-VDC
Max Current draw from V
Q
I
QMAX
-10-µA
- Features 1
- Description 1
- TABLE OF CONTENTS 2
- LIST OF FIGURES 4
- LIST OF TABLES 5
- 1. PIN DESCRIPTION 6
- DS618F2 7 7
- Pin Name # Pin Description 7
- ABSOLUTE MAXIMUM RATINGS 8
- DIGITAL CHARACTERISTICS 14
- =20pF) 16
- , of SCL 17
- 18 DS618F2 18
- Parameter Symbol Min Max Unit 18
- DS618F2 19 19
- 20 DS618F2 20
- 4. APPLICATIONS 21
- 23
- 4.4 Oversampling Modes 24
- 4.5 Interpolation Filter 24
- 4.6 De-emphasis 24
- 4.7 ATAPI Specification 25
- 4.9.1 Capacitor Placement 26
- 4.11 Mute Control 27
- 4.12.1 Hardware Mode 28
- 4.12.2 Software Mode 28
- 4.14 Control Port Interface 29
- 4.14.1 MAP Auto Increment 29
- 4.14.2 I²C Mode 29
- 4.14.2.1 I²C Write 29
- 4.14.2.2 I²C Read 30
- 4.14.3 SPI Mode 30
- 4.14.3.1 SPI Write 30
- DS618F2 31 31
- 5. REGISTER QUICK REFERENCE 32
- 6. REGISTER DESCRIPTION 33
- 6.1.5 Power Down (PDN) 34
- DS618F2 35 35
- DIF2 DIF1 DIFO DESCRIPTION 35
- 6.3.5 Auto-Mute (AMUTE) 36
- DS618F2 37 37
- Default = 0 37
- 38 DS618F2 38
- Function: 39
- 6.6.3 Functional Mode (FM) 40
- 6.7.1 Mute (MUTE) 40
- 6.7.2 Volume Control (XX_VOL) 41
- 7. FILTER PLOTS 42
- DS618F2 43 43
- Amplitude (dB) 44
- 8. PARAMETER DEFINITIONS 46
- 9. PACKAGE DIMENSIONS 47
- 48L LQFP PACKAGE DRAWING 47
- 10.ORDERING INFORMATION 48
- 11.REFERENCES 48
- 12.REVISION HISTORY 49
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